Post #1559068

2026-01-28 00:11 UTC

@osm_tech @BalooUriza For IPv4, a bitmask of the entire address space is a viable "efficient" implementation of blocking. I wonder if there are tools that can do it that way rather than needing a gigantic list.

Replies (3)

@dalias@hachyderm.io 2026-01-28 00:17

@osm_tech @BalooUriza Like, a bitmask of IPv4 space is several times smaller than a Chrome instance. 🙃 🤡

Open ##1559069
@slink@fosstodon.org 2026-01-28 07:52

@dalias @osm_tech @BalooUriza we have a very efficient implementation in #vinylcache (formerly #varnishcache )

Open ##1559070
@magezwitscher@det.social 2026-01-28 16:03

@dalias @BalooUriza But that is one of the points @osm_tech are making in their post. These crawlers resort to using massive amounts of "scrapers hiding behind residential proxy/embedded-SDK networks" - meaning they are using Adware-infested phones all over the world for their scraping attaks. So banning IP ranges won't help much. Playing cat-and-mouse with these scrapers is resource intensive, which is increasingly hard for FOSS projects and is also driving up cost for commercial offerings.

Open ##1559072